Bluish white crystal found in some minerals
Calcium borate
Names
IUPAC names
Calcium borate
Identifiers
ChemSpider
ECHA InfoCard
100.034.131
UNII
InChI=1S/2BO3.3Ca/c2*2-1(3)4;;;/q2*-3;3*+2
Y Key: VLCLHFYFMCKBRP-UHFFFAOYSA-N
Y InChI=1/4BO3.6Ca/c4*2-1(3)4;;;;;;/q4*-3;6*+2
Key: KKKYJLNWARAYSD-UHFFFAOYAA
InChI=1/2BO3.3Ca/c2*2-1(3)4;;;/q2*-3;3*+2
Key: VLCLHFYFMCKBRP-UHFFFAOYAG
[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-]
[Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-]
Properties
Ca3 (BO3 )2
Molar mass
237.852 g/mol
Appearance
bluish white crystal
Hazards
Flash point
Non-flammable
Lethal dose or concentration (LD, LC):
590 mg/kg (oral, mouse)
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Calcium borate (Ca3 (BO3 )2 ). It can be prepared by reacting calcium metal with boric acid . The resulting precipitate is calcium borate. A hydrated form occurs naturally as the minerals colemanite , nobleite and priceite.[citation needed ]
One of its uses is as a binder in some grades of hexagonal boron nitride for hot pressing . Other uses include flame retardant in epoxy molding compounds, a ceramic flux in some ceramic glazes , reactive self-sealing binders in hazardous waste management,[ 1] additive for insect-resistant polystyrene ,[ 2] fertilizer , and production of boron glasses .
Also it used as a main source of boron oxide in the manufacturing of ceramic frits that used in the ceramic glaze or ceramic engobe for wall and floor ceramic tiles.[citation needed ]
References
Hydrogen & halogens Chalcogens Pnictogens Group 13 & 14 Trans metals Organics